USBFlashCopy is a small Windows utility to back up your flash drives and storage cards on the fly. It runs in the background and copies files from inserted media to a safe location on your hard drive:
http://www.usbflashcopy.com/

ImDisk is a virtual disk driver for Windows NT/2000/XP/2003/Vista/2008. It can create virtual hard disk, floppy or CD/DVD drives using image files or system memory:
http://www.ltr-data.se/opencode.html/

SuperGeek Free JPG to PDF Converter is a straightforward yet sophisticated converter specifically designed to convert numerous image files including JPG, GIF, BMP, PNG, PSD, etc. into Adobe PDF files and Postscript documents, without the need of Adobe Acrobat software, thus you can easily view and share them on multiple devices and on the web:
http://www.free-jpg-to-pdf.com/

Kiwix is an offline reader for Web content. It's especially intended to make Wikipedia available offline. This is done by reading the content of the project stored in a file format ZIM, a high compressed open format with additional meta-data:
http://kiwix.org/index.php/Main_Page#Wikipedia_files

Advanced Uninstaller PRO is the ultimate uninstaller for Windows, allowing you to uninstall programs quickly and completely using its simple and intuitive interface:
http://www.advanceduninstaller.com/

shell-fm is a lightweight, console-based player for Last.FM radio streams. It’s pretty small (the binary is currently about 70K, or about 60K when stripped) and it has most features the official player has, if not even a few more:
http://nex.scrapping.cc/shell-fm/